SAP Software Developer interview questions

First round was ds &algo round one easy and second medium question. Second round was kind of system design. Third round was again ds & algo problem along with other technical background and behavioral. Forth technical round was conducted by person from different team. Filth round was hr discussion. Then After all these rounds they decided if they would hire you or not. I was selected and they decided to hire. For background check when I told HR that I had abscond my first company for geniune reason they did not offer me. Looks like company's value does not value honestly of candidate and the fact that candidate has cleared all interview rounds.